Los Angeles edges it in September. Los Angeles averages 17–26°C with moderate crowds; Miami 25–31°C with very low crowds.
By Daan · Last reviewed October 2026
Los Angeles and Miami
The verdict for September
LA's best weather window
+One of LA's best weather windows, with warm days, clearer coastal conditions and summer crowds easing.
–Heatwaves can happen and event weekends still affect prices.
One of LA's best weather windows, with warm days, clearer coastal conditions and summer crowds easing.
The weakest weather month for most travellers
+Prices can be among the most attractive of the year.
–High heat, high humidity, frequent rain and hurricane-season exposure.
Best for aggressive value seekers who accept weather risk.
Scores and crowd levels are my own judgement; temperatures are monthly averages. Higher scores are better: quieter, cheaper and more pleasant.
Another month